Quarterly Average 1990 = 100
1975-03-31 164.98
1975-06-30 165.43
1975-09-30 170.22
1975-12-31 169.28
1976-03-31 156.78
1976-06-30 157.12
1976-09-30 156.92
1976-12-31 154.34
1977-03-31 154.97
1977-06-30 151.28
1977-09-30 123.92
1977-12-31 122
1978-03-31 120.51
1978-06-30 123.44
1978-09-30 128.12
1978-12-31 128.14
1979-03-31 134.78
1979-06-30 137.52
1979-09-30 132.68
1979-12-31 132.01
1980-03-31 132
1980-06-30 125.4
1980-09-30 120.86
1980-12-31 119.49
1981-03-31 119.58
1981-06-30 120.47
1981-09-30 118.3
1981-12-31 117.04
1982-03-31 114.29
1982-06-30 114.98
1982-09-30 115.44
1982-12-31 101.25
1983-03-31 97.26
1983-06-30 94.75
1983-09-30 93.89
1983-12-31 94.19
1984-03-31 96.08
1984-06-30 96.38
1984-09-30 96.83
1984-12-31 98.2
1985-03-31 97.37
1985-06-30 94.65
1985-09-30 90.99
1985-12-31 90.57
1986-03-31 91.06
1986-06-30 90.84
1986-09-30 91.08
1986-12-31 89.67
1987-03-31 87.38
1987-06-30 88.64
1987-09-30 92.15
1987-12-31 91.5
1988-03-31 92.62
1988-06-30 91.82
1988-09-30 92.46
1988-12-31 95.83
1989-03-31 97.5
1989-06-30 95.39
1989-09-30 96.6
1989-12-31 97.98
1990-03-31 98.19
1990-06-30 102
1990-09-30 100.66
1990-12-31 99.75
1991-03-31 100.76
1991-06-30 98.83
1991-09-30 99.21
1991-12-31 99.97
1992-03-31 99.81
1992-06-30 100.18
1992-09-30 94.6
1992-12-31 93.55
1993-03-31 94.25
1993-06-30 85.39
1993-09-30 83.71
1993-12-31 80.57
1994-03-31 81.29
1994-06-30 81.18
1994-09-30 81.21
1994-12-31 80
1995-03-31 77.52
1995-06-30 80.8
1995-09-30 80.67
1995-12-31 82.23
1996-03-31 81.97
1996-06-30 80.42
1996-09-30 80.25
1996-12-31 79.15
1997-03-31 78.07
1997-06-30 76.93
1997-09-30 77.05
1997-12-31 76.68
1998-03-31 76.05
1998-06-30 76.7
1998-09-30 77.87
1998-12-31 77.49
1999-03-31 76.31
1999-06-30 75.77
1999-09-30 75.58
1999-12-31 74.61
2000-03-31 73.88
2000-06-30 74.4
2000-09-30 73.29
2000-12-31 74.41
2001-03-31 74.15
2001-06-30 73.53
2001-09-30 74.28
2001-12-31 74.21